Home / 426,496.92-639,966.87-173,962.68

Finding the Fourth Proportional to 426,496.92, 639,966.87 and 173,962.68

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Solution

The fourth proportional to 426,496.92, 639,966.87 and 173,962.68 is: 261,034.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,496.92 : 639,966.87 = 173,962.68 : x
  2. Step 2: Convert to fraction form
    426,496.92/639,966.87 = 173,962.68/x
  3. Step 3: Cross multiply
    426,496.92x = 639,966.87 × 173,962.68
  4. Step 4: Simplify right side
    426,496.92x = 111,330,351,816.41
  5. Step 5: Solve for x
    x = 111,330,351,816.41/426,496.92
  6. Step 6: Final answer
    x = 261,034.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.